Rihanna's cheeky fashion fun

MUSIC super star Rihanna and her Battleship co-star Brooklyn Decker had a bit of cheeky fun today ahead of tonight's red carpet premiere at Luna Park.

The young beauties wore their own T-shirts featuring amusing old photos of the film's director Peter Berg while talking to Australian press.

"This journalist came into an interview of ours - I think in London - and he had a Rihanna T-shirt and Brooklyn said 'I'm getting a Rihanna T-shirt' and I said 'no we should get Pete Berg T-shirts'," Rihanna said.

"So it was her idea and we ended up getting them printed and the whole cast has them.

It's a far cry from the Barbados native's first meeting with Berg, who directed Friday Night Lights, The Kingdom and Hancock.

"I had no idea who he was. I knew his face but I didn't know he was a director. I didn't even know it was a movie meeting I was in," she said.

"So he had little replicas of the aliens on this desk and I'm cracking up because he's calling them thugs. I thought 'this guy is so weird, why does he have all these toys in his room?'

"By the end of the whole meeting I had obviously figured out we were talking about a film but only at the end of the meeting I knew that he was the director, and it made me say 'oh (expletive)'. Let me backtrack everything I did in this meeting for the last hour. I hope I've got this part."

The big-budget action flick is Rihanna's first acting role and sees her starring opposite John Carter star Taylor Kitsch, True Blood's Alexander Skarsgard and Liam Neeson.